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	tadd james paper post - adamsgaard.dk - my academic webpage
	git clone git://src.adamsgaard.dk/adamsgaard.dk
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	commit 4de846e13d01be826d446f210125407fc06133c2
	parent 3a656e6892c31528fff19d36d1e1986d519337b7
	Author: Anders Damsgaard <[email protected]>
	Date: Sun, 27 Jun 2021 20:27:17 +0200

	add james paper post

	Diffstat:
	A pages/011-james.cfg \| 7 +++++++
	A pages/011-james.html \| 49 +++++++++++++++++++++++++++++…
	A pages/011-james.txt \| 46 +++++++++++++++++++++++++++++…

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	diff --git a/pages/011-james.cfg b/pages/011-james.cfg
	t@@ -0,0 +1,7 @@
	+filename=james.html
	+title=New paper out on sea ice ridging
	+description=Simulation of sea ice physics
	+id=james
	+tags=science, glaciology, sea ice
	+created=2021-06-27
	+updated=2021-06-27
	diff --git a/pages/011-james.html b/pages/011-james.html
	t@@ -0,0 +1,49 @@
	+<p>Considerable areas of the polar oceans are covered by sea ice,
	+formed by frozen sea water. The extent and thickness of the ice
	+pack influences local and regional ecology and climate. The ice
	+thickness is particularly important for the ice-cover survival
	+during warm summers. Wind and ocean currents compress and shear the
	+sea ice, and can break and stack ice into ridges. Current sea ice
	+models assume that the ice becomes increasingly rigid as ridges of
	+ice rubble grow. Modeling sea ice as bonded particles, we show that
	+ice becomes significantly weaker right after the onset of ridge
	+building. We introduce a mathematical framework that allows these
	+physical processes to be included in large-scale models.</p>
	+
	+<p>Today a new paper of mine is published in the AGU-group journal
	+<a href="https://agupubs.onlinelibrary.wiley.com/journal/19422466">Journal
	+of Advances in Modeling Earth Systems</a>, and it is written with
	+co-authors <a href="https://scholar.princeton.edu/aos_sergienko/home">Olga
	+Sergienko</a> and <a
	+href="https://www.gfdl.noaa.gov/alistair-adcroft-homepage/">Alistair
	+Adcroft</a> at Princeton University (New Jersey, USA). I use my
	+program <a href="https://src.adamsgaard.dk/Granular.jl">Granular.jl</a>
	+for the simulations.</p>
	+
	+<h2>Abstract</h2>
	+<blockquote>
	+<b>The Effects of Ice Floe-Floe Interactions on Pressure Ridging in Sea Ice
	+</b>
	+<br><br>
	+The mechanical interactions between ice floes in the polar sea-ice
	+packs play an important role in the state and predictability of the
	+sea-ice cover. We use a Lagrangian-based numerical model to investigate
	+such floe-floe interactions. Our simulations show that elastic and
	+reversible deformation offers significant resistance to compression
	+before ice floes yield with brittle failure. Compressional strength
	+dramatically decreases once pressure ridges start to form, which
	+implies that thicker sea ice is not necessarily stronger than thinner
	+ice. The mechanical transition is not accounted for in most current
	+sea-ice models that describe ice strength by thickness alone. We
	+propose a parameterization that describes failure mechanics from
	+fracture toughness and Coulomb sliding, improving the representation
	+of ridge building dynamics in particle-based and continuum sea-ice
	+models.
	+</blockquote>
	+
	+<h2>Links and references:</h2>
	+<ul>
	+ <li><a href="https://doi.org/10.1029/2020MS002336">Publication on jour…
	+ <li><a href="https://src.adamsgaard.dk/seaice-experiments">Source code…
	+ <li><a href="https://src.adamsgaard.dk/Granular.jl">Simulation softwar…
	+</ul>
	diff --git a/pages/011-james.txt b/pages/011-james.txt
	t@@ -0,0 +1,46 @@
	+Considerable areas of the polar oceans are covered by sea ice,
	+formed by frozen sea water. The extent and thickness of the ice
	+pack influences local and regional ecology and climate. The ice
	+thickness is particularly important for the ice-cover survival
	+during warm summers. Wind and ocean currents compress and shear the
	+sea ice, and can break and stack ice into ridges. Current sea ice
	+models assume that the ice becomes increasingly rigid as ridges of
	+ice rubble grow. Modeling sea ice as bonded particles, we show that
	+ice becomes significantly weaker right after the onset of ridge
	+building. We introduce a mathematical framework that allows these
	+physical processes to be included in large-scale models.
	+
	+Today a [1]new paper of mine is published in the AGU-group journal
	+[1]Journal of Advances in Modeling Earth Systems, and it is written
	+with co-authors Olga Sergienko and Alistair Adcroft at Princeton
	+University (New Jersey, USA). I use my program [5]Granular.jl for
	+the simulations.
	+
	+
	+## Abstract
	+
	+The Effects of Ice Floe-Floe Interactions on Pressure Ridging in Sea Ice
	+
	+The mechanical interactions between ice floes in the polar sea-ice
	+packs play an important role in the state and predictability of the
	+sea-ice cover. We use a Lagrangian-based numerical model to investigate
	+such floe-floe interactions. Our simulations show that elastic and
	+reversible deformation offers significant resistance to compression
	+before ice floes yield with brittle failure. Compressional strength
	+dramatically decreases once pressure ridges start to form, which
	+implies that thicker sea ice is not necessarily stronger than thinner
	+ice. The mechanical transition is not accounted for in most current
	+sea-ice models that describe ice strength by thickness alone. We
	+propose a parameterization that describes failure mechanics from
	+fracture toughness and Coulomb sliding, improving the representation
	+of ridge building dynamics in particle-based and continuum sea-ice
	+models.
	+
	+
	+References:
	+
	+[1] https://doi.org/10.1029/2020MS002336
	+[2] https://agupubs.onlinelibrary.wiley.com/journal/19422466
	+[3] https://scholar.princeton.edu/aos_sergienko/home
	+[4] https://www.gfdl.noaa.gov/alistair-adcroft-homepage/
	+[5] https://src.adamsgaard.dk/seaice-experiments